[Bug 988583] Re: grub-mount hangs when update-grub is ran

[Hans-Christoph Steiner]

I'm also affected by this on Ubuntu/precise (Mint/maya).  I have my
internal laptop drive with dual boot HFS+/Mac OS X and ext4/GNU/Linux.
The grub-mount hang never happens with that disk.  It does happen when
my external backup disk is attached.  I thought maybe it had something
to do with how the disks were partitioned.  Here's my internal disk that
works fine:

$ sudo parted /dev/sda
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: ATA ST9750420AS (scsi)
Disk /dev/sda: 750GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number  Start   End    Size    File system  Name                   Flags
 1      20.5kB  210MB  210MB   fat32        EFI System Partition   boot
 2      210MB   483GB  483GB   hfs+         Untitled
 3      484GB   645GB  161GB   ext4         Untitled
 4      645GB   666GB  21.5GB  ext3         Apple_HFSX_Untitled_4
 5      666GB   750GB  83.8GB  ext3         Apple_HFSX_Untitled_2


Here's the backup disk that triggers the problem:
$ sudo parted /dev/sdb
GNU Parted 2.3
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: WD Ext HDD 1021 (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name                  Flags
 1      20.5kB  210MB   210MB   fat32        EFI System Partition  boot
 2      210MB   400GB   400GB   hfsx         BIGBACKUP
 3      400GB   2000GB  1600GB  ext4

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https://bugs.launchpad.net/bugs/988583

Title:
  grub-mount hangs when update-grub is ran

Status in “grub2” package in Ubuntu:
  Fix Released
Status in “grub2” source package in Precise:
  Triaged

Bug description:
  Whenever my system tries to build the grub.cfg, the grub-mount hangs and I have to kill it 3 times before the command completes.
  I had a look on the internet and I got this links which is related :

  http://lists.gnu.org/archive/html/grub-devel/2012-02/msg00206.html

  To sum up, I have a 3 fs on my disks which are hfs+ and grub-mount
  hangs each time it tries to process them.

  Problem seems to have been fixed upstream.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub-pc 1.99-21ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.0.1-0ubuntu6
  Architecture: amd64
  Date: Wed Apr 25 23:51:07 2012
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64+mac (20110126)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to precise on 2012-03-10 (46 days ago)

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